Details
FloPlast 300mm dia x 200mm High Manhole Riser
200mm High Riser
Comes With Internal Sealing Ring
300mm Internal Diameter
Suitable for Gravity Drainage & Sewerage
Install to Depths of 10m
60 / 100 / 150mm Cut-Down Facility
http://www.floplast.co.uk/uploads/Inspection%20Chambers.pdf click here for more details